Weather Alerts for Lower Columbia

Issued by the National Weather Service

Flood Advisory  FLOOD ADVISORY   Flood Advisory
LOWER COLUMBIA

Areas Affected:
Clark - Cowlitz
Effective: Sat, 10/21 3:43pm Updated: Sat, 10/21 11:36pm Urgency: Expected
Expires: Mon, 10/23 5:00am Severity: Minor Certainty: Likely

 
Details:
The National Weather Service in Portland has issued a
* Urban and Small Stream Flood Advisory for...
Polk County in northwestern Oregon...
Yamhill County in northwestern Oregon...
Northwestern Lincoln County in western Oregon...
Tillamook County in northwestern Oregon...
Columbia County in northwestern Oregon...
Multnomah County in northwestern Oregon...
Clatsop County in northwestern Oregon...
Western Clackamas County in northwestern Oregon...
Western Marion County in northwestern Oregon...
Washington County in northwestern Oregon...
Wahkiakum County in southwestern Washington...
Pacific County in southwestern Washington...
Clark County in southwestern Washington...
Western Cowlitz County in southwestern Washington...
* Until 200 PM PDT Sunday.
* At 2 PM PDT, Doppler radar and rain gauges indicated areas of
heavy rain on the increase. Periods of moderate to heavy rain will
continue through Saturday night and into Sunday morning, with
rainfall totals of 1 to 3 inches in populated areas and higher
amounts in the Coast Range and Cascade foothills. Flooding of some
small streams and ponding of water in poor drainage areas is
likely. Drivers should use extra caution and avoid driving through
flooded areas.

Flood Watch  FLOOD WATCH   Flood Watch
LOWER COLUMBIA

Areas Affected:
South Washington Cascade Foothills
Effective: Sat, 10/21 11:01pm Updated: Sat, 10/21 11:36pm Urgency: Future
Expires: Sun, 10/22 4:00am Severity:  Moderate  Certainty: Possible

 
Details:
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SUNDAY NIGHT FOR
PORTIONS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON...
The Flood Watch continues for
* Portions of Northwest Oregon and Southwest Washington,
including the following areas, in Northwest Oregon, Central
Willamette Valley, Coast Range of Northwest Oregon, Greater
Portland Metro Area, Lower Columbia, North Oregon Coast,
Northern Oregon Cascade Foothills, and Northern Oregon
Cascades. In Southwest Washington, Central Columbia River
Gorge, Greater Vancouver Area, I-5 Corridor in Cowlitz County,
South Washington Cascade Foothills, South Washington Cascades,
South Washington Coast, Western Columbia River Gorge, and
Willapa Hills.
* Through late Sunday night
* Heavy rain expected on Saturday and Saturday night, with
significant rises expected on many streams and rivers. Rivers
currently forecast to crest above or near flood stage include
the Wilson and Trask in Tillamook County and the Grays in
Wahkiakum County.
* Total rainfall Coast Range and Willapa Hills...4 to 8 inches.
South Washington and north Oregon Cascades... 3 to 7 inches.
Coastal areas... 3 to 6 inches, heaviest north of Lincoln City.
Columbia River Gorge... 3 to 7 inches, including Eagle Creek
burn area. Interior lowlands...1 to 3 inches.

Information:
A Flood Watch means there is a potential for flooding based on
current forecasts.
You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.
Landslides and debris flows are possible during this flood event.
People, structures and roads located below steep slopes, in
canyons and near the mouths of canyons may be at serious risk
from rapidly moving landslides.

Flood Watch  FLOOD WATCH   Flood Watch
LOWER COLUMBIA

Areas Affected:
South Washington Cascades - Willapa Hills
Effective: Sat, 10/21 4:58pm Updated: Sat, 10/21 11:36pm Urgency: Future
Expires: Sun, 10/22 12:00am Severity:  Moderate  Certainty: Possible

 
Details:
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SUNDAY NIGHT FOR
PORTIONS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON...
The Flood Watch continues for
* Portions of Northwest Oregon and Southwest Washington,
including the following areas, in Northwest Oregon, Central
Willamette Valley, Coast Range of Northwest Oregon, Greater
Portland Metro Area, Lower Columbia, North Oregon Coast,
Northern Oregon Cascade Foothills, and Northern Oregon
Cascades. In Southwest Washington, Central Columbia River
Gorge, Greater Vancouver Area, I-5 Corridor in Cowlitz County,
South Washington Cascade Foothills, South Washington Cascades,
South Washington Coast, Western Columbia River Gorge, and
Willapa Hills.
* Through late Sunday night
* Heavy rain expected on Saturday and Saturday night, with
significant rises expected on many streams and rivers. Rivers
currently forecast to crest above or near flood stage include
the Wilson and Trask in Tillamook County and the Grays in
Wahkiakum County.
* Total rainfall Coast Range and Willapa Hills...4 to 8 inches.
South Washington and north Oregon Cascades... 3 to 7 inches.
Coastal areas... 3 to 6 inches, heaviest north of Lincoln City.
Columbia River Gorge... 3 to 7 inches, including Eagle Creek
burn area. Interior lowlands...1 to 3 inches.

Information:
A Flood Watch means there is a potential for flooding based on
current forecasts.
You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.
Landslides and debris flows are possible during this flood event.
People, structures and roads located below steep slopes, in
canyons and near the mouths of canyons may be at serious risk
from rapidly moving landslides.

Flood Watch  FLOOD WATCH   Flood Watch
LOWER COLUMBIA

Areas Affected:
Lower Columbia and I - 5 Corridor in Cowlitz County - South Washington Coast
Effective: Sat, 10/21 11:01pm Updated: Sat, 10/21 11:36pm Urgency: Future
Expires: Sun, 10/22 2:00am Severity:  Moderate  Certainty: Possible

 
Details:
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SUNDAY NIGHT FOR
PORTIONS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON...
The Flood Watch continues for
* Portions of Northwest Oregon and Southwest Washington,
including the following areas, in Northwest Oregon, Central
Willamette Valley, Coast Range of Northwest Oregon, Greater
Portland Metro Area, Lower Columbia, North Oregon Coast,
Northern Oregon Cascade Foothills, and Northern Oregon
Cascades. In Southwest Washington, Central Columbia River
Gorge, Greater Vancouver Area, I-5 Corridor in Cowlitz County,
South Washington Cascade Foothills, South Washington Cascades,
South Washington Coast, Western Columbia River Gorge, and
Willapa Hills.
* Through late Sunday night
* Heavy rain expected on Saturday and Saturday night, with
significant rises expected on many streams and rivers. Rivers
currently forecast to crest above or near flood stage include
the Wilson and Trask in Tillamook County and the Grays in
Wahkiakum County.
* Total rainfall Coast Range and Willapa Hills...4 to 8 inches.
South Washington and north Oregon Cascades... 3 to 7 inches.
Coastal areas... 3 to 6 inches, heaviest north of Lincoln City.
Columbia River Gorge... 3 to 7 inches, including Eagle Creek
burn area. Interior lowlands...1 to 3 inches.

Information:
A Flood Watch means there is a potential for flooding based on
current forecasts.
You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.
Landslides and debris flows are possible during this flood event.
People, structures and roads located below steep slopes, in
canyons and near the mouths of canyons may be at serious risk
from rapidly moving landslides.